Method for removing tubes from a tubesheet
US4184243A · kind A · utility
2Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 1978 |
| Grant date | Jan 22, 1980 |
| Priority date | — |
| Expiry date | Oct 17, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T279/1066
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for removing a tube from an opening in a tubesheet in which a containment plug is placed in the tube at a predetermined distance from the end of the tube and a granular material is placed into a portion of the tube between the plug and the latter tube end. A push rod is applied through the tube end and to said granular material to apply a force to the granular material against the plug to cause the granular material to exert a shear force on the inner wall of the tube of a magnitude to push the tube from the tubesheet opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.